Lane-Specific Map Segmentation for Vehicle Navigation
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Solution Overview
Problem
Conventional vehicle navigation systems lack lane-specific traffic congestion and restriction information, which hinders the determination of a recommended lane for optimal driving comfort and efficiency.
Innovation Solution
A vehicle system that utilizes a high-precision map to determine a recommended lane by considering traffic congestion, vehicle type, occupancy, and driver preferences, excluding prohibited lanes and prioritizing lanes with optimal traffic conditions and driver performance history.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional map information is used without lane-specific details, then the system complexity is reduced, but the accuracy of recommended lane determination deteriorates
Solution Approach 1:
The patent segments map information by lane, dividing the road into multiple lanes with individual traffic congestion and restriction information. This segmentation enables precise lane determination while managing complexity through structured data organization for each lane separately
Solution Approach 2:
The patent applies local quality by providing different traffic congestion and restriction information for each specific lane rather than uniform information for the entire road. This allows the system to determine recommended lanes with high accuracy by considering lane-specific conditions
2Measurement precision
If lane-specific traffic congestion information is acquired and processed, then the recommended lane determination accuracy is improved, but the information processing complexity increases
Solution Approach 1:
The controller segments the information processing by handling traffic congestion and restriction information separately for each lane. This structured approach improves determination accuracy while managing processing complexity through organized lane-specific data handling
Solution Approach 2:
The system performs preliminary processing of map information by pre-acquiring and organizing traffic congestion and restriction information for each lane before route determination. This preliminary action reduces real-time processing complexity while maintaining high determination accuracy
3Ease of operation
If the system determines recommended lanes using high-precision map information, then driving comfort is improved, but the data communication requirements increase
Solution Approach 1:
The patent transmits only lane-specific traffic congestion and restriction information rather than complete road information. This local quality approach improves driving comfort through accurate lane recommendations while reducing data communication volume by transmitting only necessary lane-level data
Data Source
AI summary
A vehicle system includes: a controller configured to communicate with a map server; and a vehicle position acquiring device configured to acquire own vehicle position information. The controller includes: a vehicle position determining unit configured to determine a lane in which an own vehicle is traveling based on the own vehicle position information; a storage unit configured to store an attendant circumstance of the own vehicle; and a recommended lane determining unit configured to determine a recommended lane. The recommended lane determining unit is configured to set a priority of each lane based on map information, determine the lane having a highest priority as the recommended lane, and exclude a travel prohibited lane, in which travel of the own vehicle is prohibited, from a candidate for the recommended lane based on restriction information and the attendant circumstance.